Phlogiston theory is one of the core theories of flame spells, classical mages believe that phlogiston is a gaseous substance that exists in all combustible substances, and combustion is that phlogiston is dispersed from combustible substances and combined with air to glow and heat, which is fire.

Grease, wax, charcoal, etc. are all extremely phlogistin-rich substances, so they burn very violently, while stone, wood ash, gold, etc. do not contain phlogiston, so they cannot be burned.

They even believe that the chemical change of a substance can also be attributed to the process by which the substance releases phlogiston or absorbs phlogiston. For example, when zinc or lead is calcined, phlogiston escapes from it, producing white zinc ash and red lead ash, and when zinc ash and lead ash are roasted with charcoal, the zinc ash and lead ash absorb phlogiston from the charcoal and the metal is reborn. Alcohol is a combination of water and phlogiston, and when alcohol is burned, water is left, and the dissolution of metal in acid is the process by which phlogiston is taken away by acid.

"Is there anything wrong with phlogiston, and why is it thought to be replaced by the heat mass theory?"

I don't know if it's to cater to Kaichi or if he's really interested in this, Baden seems to be very interested in Kaichi's statement.

Jiayi swallowed the burnt salmon in his mouth, took a sip of the soup, and said, "Master Romon proved the phlogiston theory wrong by experiments, and when the magnesium metal was heated in a closed glass bottle, the weight did not increase, but when it was heated in the air, the mass increased. If phlogiston is true, then the mass should be reduced, after all, phlogiston should theoretically escape and combine with air. ”

Baden seemed to understand a little: "But what is the matter with this burning fire?"

Jiayi briefly introduced the popular theory of heat to the other party, which has not been popular for a long time, and not long after Jiayi saw the perfect supplement to this doctrine in the magazine. It's a long way from Moshacher, and it takes time for the magazine to arrive, but the magazine has only been delayed for half a year.

This theory goes a step further than phlogiston, not only trying to explain phlogiston, but also trying to explain heat. Under this theory, thermal matter is considered to be a massless gas, and when an object absorbs thermal matter, the temperature increases, and the thermal mass is transferred from a hot object to a low temperature object, and can pass through the pores of a solid or liquid.

This statement can explain many phenomena, such as hot things can slowly cool down when placed indoors, which is a big step forward from phlogiston.

One of the greatest contributions of this theory is the belief that thermal mass is conserved and flows from one object to another, without increasing or disappearing out of thin air.

This is almost the original law of conservation of energy.

At this point, Baden is not so easy to understand, and it is not as intuitive as phlogiston.

"I can't believe you know so much about burning, mage. Baden could only begin to praise Kaichi.

Jia Yi smiled with a little modest pride, he didn't know a little about thermodynamics, the reason why he chose fire spells and water spells when he was a gray-robed mage was that he planned to specialize in thermodynamics in the future.

After dinner, he returned to his room, and Kaichi took out the magazine and began to study the hot quality of the magazine.

He wasn't too cold about the heat, but he needed to know where his peers were. When he was on Earth, he didn't know much about the history of thermodynamics, but he always learned about the conservation of mechanical energy, and the transformation of potential energy and kinetic energy, and the work done by mechanical energy are all basics.

Therefore, he was skeptical of heat from the beginning, but even if he wanted to come up with something new, he should study the current theory clearly.

After becoming a white-robed mage, in addition to taking time to learn new spells, Jia Yi also began to specialize in the study of thermodynamics.

Fire or flame spells are the basic spells in the traditional spell system, but the understanding of fire spells is not particularly deep, and so far, many mages still believe that cold is also a substance, as opposed to heat.

However, after the theory of heat mass was proposed, some people have eliminated the theory that cold is also a substance, believing that cold is just a manifestation of the lack of heat, according to this theory, some people have begun to transform frost spells, and have achieved good results.

There are even mages who have modified the formula for measuring the speed of sound according to the theory of thermal mass, which is a formula proposed by Lord Isaac to predict the speed of sound in different substances, and now adds a adiabatic index constant to the formula for the speed of sound, which greatly corrects the prediction of the theoretical value of the speed of sound.

However, Kaichi knew that the theory of thermal mass was not infallible, and that the theory of thermal mass could not explain the heat generated by friction, and that the heat generated by this continuous work could not be explained.

Kaichi questioned the theory of thermal mass based on mechanical work and began to write a draft paper on thermodynamics.

......

Jia Yi stood on the deck, beside Xiaoqing, they had been walking on the sea for almost a month, and the scenery that had been looking magnificent now looked a little aesthetically tired, and he didn't dare to be interested.

Xiaoqing was not comfortable in the small room, and Jiayi would often take Xiaoqing to the deck to bask in the sun.

I don't know if it's because of the green color, Xiaoqing likes to bask in the sun very much, especially when it's cold, he will always be unrefreshed if he doesn't bask in the sun, just like the green body becomes photosynthetic.

However, Xiaoqing is not only more energetic when he basks in the sun, but also can charge the horns on his head, which really means that he can absorb solar energy.

Baden came to Jiayi's side and said, "You are so good to your mount, why did you choose a cow as your mount?"

"Because this is not an ordinary cow, if you have seen Xiao Qingfawei, you will not think so. I'm going to get to the next port and I'd like to do a little bit of renovation to Xiaoqing's cabin, do you think it's okay?"

Although Kaichi had a consultative tone, he did not think that Baden would refuse.

Baden really didn't refuse, but said, "Master, you said you were going to install a sonar for us, I don't know when you can." ”

"If you want, I can install it for you now, the sonar I designed is external, just install an external pendant in the lower part of the bow, you don't need to destroy the hull, so you can install it at any time. You didn't ask, I thought you didn't need it. ”

Jia Yi actually did it on purpose, he was dissatisfied with Xiaoqing's arrangement at the time, so he didn't take the initiative to mention it.

Baden hurriedly said: "If I can, of course I hope that the sooner the better." ”

"Okay, since you're willing, I'll make some preparations and install it for you right away. ”

As he spoke, a white line shot out of Jiayi's hand, and there was a bang, and a burst of mist rose from his shoulder behind him, hitting the mast behind Jiayi, and a white line appeared in front of him, and a small vortex suddenly appeared on the surface of the water, and then condensed a piece of ice, and among the ice cubes, there was a swordfish more than one meter long that was frozen inside.

"Dinner in the evening. ”

Although he heard Kaichi say this, Baden didn't look happy at all, and was taken aback by the sudden appearance of the spell. He touched the mast behind Jia's body, and suddenly retracted his hand, and it felt a little hot.

This is a spell that Jia Yixin has researched, and it has not really been perfected, but it has already shown a good power.

Jia Yi took out the sonar from the storage bracelet, walked to the side of the boat and jumped into the water, although he fell into the water, but it was like flying in the air, and he didn't need to hold his breath, and his legs swung like a fish, and he was flexible to the bottom of the bow.

He fixed the sonar under the daffodil, which is parallel to the keel, and looks like a prominent prop commonly used in love and action teaching films, this sonar is made according to the streamline, in addition to being able to detect, it also adds the function of dividing water on the outside, which can better separate the water flow and increase the top speed of the boat.

Although he doesn't like Bardem's greed for money, he is still very dedicated and never perfunctory.

Soon, the sonar was fixed under the bow of the ship, and although Kaichi had a few thick screws, it would have no effect on the hull. Jia swung her feet and swam in the water again, looking as nimble as a seal.

He slammed into the bottom of the water, and then swam up quickly, jumping out of the water at once, if it was an ordinary person doing this, he would have been sick from diving a long time ago, but Jia Yi would not have any effect at all.

This is the additional effect of the sea dragon inner armor on his body, "like a fish in water", even if it is a landlubber, it can become a mermaid, and of course it can also be an ugly male mermaid.

Although he had been in possession of this armor for a long time, it was the first time he had swam so freely in the sea.